I made an insane visualization of my PC case in MS Paint and would like suggestions for where I should put fans. I have been informed that a slightly positive case pressure is ideal. the goal is gaming. the right side has no openings. my budget is on the cheaper side if you want to recommend particular models of fan, but i am mostly interested in just location. can you mount fans on the outside of a case? would it be insane to do that? thank you anyone who helps.